package org.ghl.stringbuilder;

public class StringBuilderTest {
    public static void main(String[] args) {
        String s1 = "Hello";
        s1 += "World";
        String s2 = s1 + "World";
        System.out.println(s1 == s1);
        System.out.println(s1 == s2);
        System.out.println(s1 == s2);

    }
}
